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2 years ago

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Chemistry

1 answer:

Alik [6]2 years ago

8 0

Answer:

9 days

No explanation needed.

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3.1

stich3 [128]

Answer:

C3H8 +5O2 arrow 3CO2 +4H2O

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3 years ago

Equilibrium is reached in chemical reactions when: A) The rates of the forward and reverse reactions become equal. B) The concen

kap26 [50]

Answer:

Correct option: A

Explanation:

Equilibrium means the state of reaction which there is no net changes occur it means the rate of forward reaction and rate of backward reaction become same and also it does not mean that the concentration of both side i.e. reactant and product become equal. after gaining equlibrium position the concentration of reactant and product remain same and also chemical reaction does not stop and it continues.

3 0

3 years ago

Read 2 more answers

2. How do we know if a hypothesis is scientific?

antoniya [11.8K]

The hypothesis can’t be a opinion or something that has nothing to do with your work

For example;if you want to see if your toilet paper is sturdy and you say “i think it will cause the commercial says it does” (wrong) answer would have to be “i infer that the toilet paper will be sturdy because it looks more resistant than other paper I’ve seen”

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3 years ago

Which of the following statements about the kinetic molecular theory are not correct?

Rashid [163]

Answer:

The false statement is: (C) The average kinetic energy of the molecules is not related to the absolute temperature

Explanation:

According to the Kinetic Theory of Gases, gases are composed of small fast moving particles that are in constant random motion. These gaseous particles are known as molecules.

It is assumed that the mass of all the gaseous molecules is the same and the intermolecular interactions (attractive or repulsive) are negligible.

Also, the total volume of all the gaseous molecules is considered to be negligible as compared to the volume of the container.

According to this theory, average kinetic energy (K) of the gaseous particles is directly proportional to the absolute temperature (T) of the gas, by the equation:

$K = \frac{3}{2}k_{b}T$

Here, $k_{b}$ is the Boltzmann constant

Therefore, the false statement about the kinetic molecular theory is (C)

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3 years ago

Why do we use the term formula unit for ionic compounds instead of the term molecule?

Sloan [31]

Ionic compounds form crystal lattices, not molecules. The term formula unit is used to indicate the simplest whole-number ratio of ions in the compound.

3 0

3 years ago